traefik2-2.11.40-1.1 on GA media SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2026:10314-1 Final 1 1 2026-03-09T00:00:00Z current 2026-03-09T00:00:00Z 2026-03-09T00:00:00Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z traefik2-2.11.40-1.1 on GA media These are all security issues fixed in the traefik2-2.11.40-1.1 package on the GA media of openSUSE Tumbleweed. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-Tumbleweed-2026-10314 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/security/rating/ SUSE Security Ratings https://www.suse.com/security/cve/CVE-2026-26998/ SUSE CVE CVE-2026-26998 page https://www.suse.com/security/cve/CVE-2026-26999/ SUSE CVE CVE-2026-26999 page https://www.suse.com/security/cve/CVE-2026-29054/ SUSE CVE CVE-2026-29054 page openSUSE Tumbleweed traefik2-2.11.40-1.1 traefik2-2.11.40-1.1 as a component of openSUSE Tumbleweed Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.38 and 3.6.9, there is a potential vulnerability in Traefik managing the ForwardAuth middleware responses. When Traefik is configured to use the ForwardAuth middleware, the response body from the authentication server is read entirely into memory without any size limit. There is no maxResponseBodySize configuration to restrict the amount of data read from the authentication server response. If the authentication server returns an unexpectedly large or unbounded response body, Traefik will allocate unlimited memory, potentially causing an out-of-memory (OOM) condition that crashes the process. This results in a denial of service for all routes served by the affected Traefik instance. This issue has been patched in versions 2.11.38 and 3.6.9. CVE-2026-26998 openSUSE Tumbleweed:traefik2-2.11.40-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2026-26998.html CVE-2026-26998 https://bugzilla.suse.com/1259276 SUSE Bug 1259276 Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.38 and 3.6.9, there is a potential vulnerability in Traefik managing TLS handshake on TCP routers. When Traefik processes a TLS connection on a TCP router, the read deadline used to bound protocol sniffing is cleared before the TLS handshake is completed. When a TLS handshake read error occurs, the code attempts a second handshake with different connection parameters, silently ignoring the initial error. A remote unauthenticated client can exploit this by sending an incomplete TLS record and stopping further data transmission, causing the TLS handshake to stall indefinitely and holding connections open. By opening many such stalled connections in parallel, an attacker can exhaust file descriptors and goroutines, degrading availability of all services on the affected entrypoint. This issue has been patched in versions 2.11.38 and 3.6.9. CVE-2026-26999 openSUSE Tumbleweed:traefik2-2.11.40-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2026-26999.html CVE-2026-26999 https://bugzilla.suse.com/1259275 SUSE Bug 1259275 Traefik is an HTTP reverse proxy and load balancer. From version 2.11.9 to 2.11.37 and from version 3.1.3 to 3.6.8, there is a potential vulnerability in Traefik managing the Connection header with X-Forwarded headers. When Traefik processes HTTP/1.1 requests, the protection put in place to prevent the removal of Traefik-managed X-Forwarded headers (such as X-Real-Ip, X-Forwarded-Host, X-Forwarded-Port, etc.) via the Connection header does not handle case sensitivity correctly. The Connection tokens are compared case-sensitively against the protected header names, but the actual header deletion operates case-insensitively. As a result, a remote unauthenticated client can use lowercase Connection tokens (e.g. Connection: x-real-ip) to bypass the protection and trigger the removal of Traefik-managed forwarded identity headers. This issue has been patched in versions 2.11.38 and 3.6.9. CVE-2026-29054 openSUSE Tumbleweed:traefik2-2.11.40-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2026-29054.html CVE-2026-29054 https://bugzilla.suse.com/1259273 SUSE Bug 1259273